It's a different story when it comes to an app or service you care about. Music and radio apps tend to succeed if the user experience is good, for example, assuming the music selection is sufficient, of course. People get very particular about how their note-taking apps work. Even browsers can engender personal loyalty. The key word is "personal" -- these apps are extensions of the person, and most people think well of themselves and want the things that refect them (their gadgets, their cars, their stereos, and their apps) to reflect that virtue.
Other apps need good user experience to succeed from the provider's point of view. For example some airlines, like United and Delta, offer a rich user experience across devices because their large business clientele cares a lot. They want convenience and the sense that they're special customers -- and not just from having a card colored like a precious metal.
Amazon.com has a great example of a mobile app that makes it way too easy to shop, which means people do shop on their smartphones -- a lot. The user experience is wonderful. Compare that to, say, the Lowes app, which focuses on in-store selling over user experience, thus ignoring the person at the center of the transaction. For example, it makes you select a store before taking any other actions, even window-shop or check your purchase history. Furthermore, in the event you don't have your physical Lowes card with you, the Lowes app can neither act as a substitute (the similar Walgreens app does this) nor let you scan in your purchases to the Lowes tracker.
In other words, you can get away with "good enough" for things people don't care much about and use only when they must, but you must provide a great experience for the things they do care about or that you want them to use a lot for your own benefit. The trick is knowing which situation applies. As the airline example shows, it can vary even within an industry.
This article, "The 'good enough' mobile app is on the rise -- but develop with caution," was originally published at InfoWorld.com. Read more of Galen Gruman's Smart User blog. For the latest business technology news, follow InfoWorld.com on Twitter.